Title :
Array of circular-polarised cross dielectric resonator antennas
Author :
Petosa, A. ; Ittipiboon, A. ; Cuhaci, M.
Author_Institution :
Communication Res. Centre, Ottawa, Ont., Canada
fDate :
9/12/1996 12:00:00 AM
Abstract :
A compact array of circular polarised cross-shaped dielectric resonator antennas (XDRAs) is presented. The array consists of 2×2 XDRAs elicited by microstrip-fed slot apertures in the X-band. By using sequential rotation to feed the XDRAs, the circular polarisation bandwidth is significantly increased from 5% for the individual XDRA to 16% in the array. The array also achieves a wide impedance bandwidth: a 10 dB return loss was maintained over a 25% bandwidth
Keywords :
dielectric resonators; electromagnetic wave polarisation; losses; waveguide antenna arrays; 10 dB; X-band; circular polarisation bandwidth; circular-polarised cross dielectric resonator antennas; impedance bandwidth; microstrip-fed slot apertures; return loss; sequential rotation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961175
